Yes, Nikon AF lenses will work on Nikon digital SLRs. However, most Nikon digital SLRs have physically smaller sensors, so that your lens has a 1.5x focal length multiplier--so that your 28-200mm lens will suddenly become an effective 42-300mm lens. ...
I think he borrow the camera from the DMV. (Division of Motor Vehicles - notorious for taking "bad" pictures to put on the driver's license.)
Mega-Vision makes a digital camera back that SHOULD fit your camera. Its $13,000 and I have no idea if it would work well or not. Frankly film is more affordable.